GRAND RAPIDS -- A 37-year-old man who stabbed his brother to death in 2006, allegedly because voices in his head told him to do it, will spend his life in prison without parole instead of going to a psychiatric facility.

Kent County Circuit Judge George Buth today found Iatonda Taylor guilty but mentally ill of first-degree murder for the May 2006 death of Moise Taylor, a father and former Marine.

Police say Iatonda Taylor used a butcher's knife with an 8-inch blade from the kitchen of his brother's home at 730 Diamond Ave. NE.

His attorney sought to have Taylor found legally insane, but Buth said his mental condition simply was not severe enough to warrant that claim.

"Defendant was not forced by any voices to kill his brother," Buth wrote. "Defendant told (a psychiatrist) if he didn't obey the voices they would call him stupid -- that was the only penalty."

Taylor will be sentenced July 23. He will receive mental health treatment while in prison.